Police raided the Australian singer's Ramsgate home on April 1 and reportedly discovered a chemical lab, together with 500g of cannabis, a "large amount of chemical equipment" and various firearms.
According to The Sunday Mail, Childs's personal manager Steve Gold was arrested in his underwear and later charged over eight illegal weapons including rifles, pellet guns and knuckledusters. No charges have yet been filed in relation to the drugs.
Gold appeared at Bankstown Local Court last week.
Childs, who had lived at the property with seven other people for the past six months, reportedly moved out of the home the day before the raid took place due to an argument with Gold and has not been seen since. He has not been charged in relation to the incident.
The former forklift truck driver won reality TV show The X Factor last year after performing U2's 'Beautiful Day'. His mentor Ronan Keating later called him a "real star".
Childs was attacked by a group of men after a performance in February. Afterwards, he said: "Life is a risk and I choose to trust people. These men were filled with hatred and the haters are just so powerful if you give them that. They must have thought their 15 minutes had come."